Shock-absorber.



A. E. HALL.

SHOCK ABsoR-ER.

APPLICATION FILED 0OT.7, 1913. jmlgjlgg Patented June 30, 1914.

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A. E. HALL.

SHOCK ABSORBBR.

4 APPLICATION FILED 00T.7, 1913. LLQ, f Patented June 30,1914,

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Specification of Letters Patent.

Patented J une 30, 1914.

Application filed October 7, 1913. Serial N0. 793,820.

To all whom t may concern Be it known that l, JALLEN E. HALL, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new fand useful Improvements in Shock-Absorbers, of whichthe following is a specification.

My invention relates to improvements in shock absorbers, an object of the invention being to provide a shock absorber which consists of a relativelyfew, strong and durable parts which may be attached to any ordinary automobile or similar vehicle, and which will most eiiciently absorb shocks and vibrations.

A. further object is to provide a shock absorber which embodies in its construction a head supported upon the upper end of a coiled spring and movable between links, the lower ends of the latter of general hook shape engaging the lower end of the coiled spring, and the upper ends of said links con nected to one part, while the head is connected to another part, whereby the spring operates to cushion the connection between the two parts.

A further object is to improve upon the construction set forth in my application for patent on shock absorbers filed J une 24, 1913, and given Serial No. 775,453.

vWith these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims. p

In the accompanying drawings: Figure 1 is a perspective view illustrating my improveincntsj` Fig. 2 is a view in longitudinal section. Fig. 3 is a view in longitudinal section at right angles to Fig. 2, taken on the line 3-3 of Fig. 2. Fig. 4 is a view in transverse section on the line 4--4 of Fig. 3. Figs. 5and G are views of details of construction,

and Fig. 7 is a view similarto Fig. 2, butv illustrating the manner of assembling the parts as my improved shock absorber is positioned on a vehicle.

1, 1 represent parallel vertically disposed links having inwardly projecting hooks 2 at their lower ends supporting the lowerend of a coiled spring 3. The upper ends of the links l are curved or bent inwardly as shown at 4, and then extend upwardly forming parallel perforated ears 5 and 6 respectively. The opening or perforation in ear 5 is screwthreaded and a bolt 7 is positioned through the ear G and screwed through the ear 5 and is provided with a head 8 against ear (3, and a nut 9 against ear 5, so that the bolt is securely held against turning movement. A sleeve 10 is located around bolt 7 and around this sleeve 10, the eye 11 of a spring 12 is positioned. 4

A circular head 18 is supported upon the upper end of spring 3, and is provided on its lower face with a cylindrical extension 14 located withinthe coiled spring and assisting in holding the parts in proper operative relationship. The head 13 is provided at opposite sides with upwardly projecting integral lugs 15, said lugs at one edge having laterally projecting enlargements constituting strongly reinforced anges 16 which bear against the edges of the links 1. `While I refer to the flanges 16 as bearing against the links, as a matter of fact l provide wearing plates 2f) which have studs 30 riveted therein and located in sockets 3l in the flanges. The studs therefore hold the wearing plates against movement, but permit the wearing plates to be removed and replaced when worn.

A. transversely positioned plate 17 is secured to the lugs 15 by means of bolts 18 which are projected through openings in the plate 17 and screwed into threaded sockets 19 in the lugs. The plate 17 is of a length equal to the combined width of the device, so that said plate cooperates with the flanges 16 to form guides for the movement of the links 1 at opposite sides of the head or vice versa, so that the parts are maintained in relative-position by the flanges 1G and the plate 17. Between the lugs 15 and plate. 17, I locate a plurality of shives perforated to receive the bolts 18, and when the parts wear, certain of these shives may beremoved to take up such wear and insure a proper engagement at all ,times The lugs 15 `are formed with registering openings 20 in which a pin 21 is located,y longitudinal movement of thepin being prevented bythe links 1 against which the ends of the pin bear; as shown clearly in Fig. 2. On the pin 21,'l a

sleeve 22 is located, and around this sleevel an' eye 23 on the end of a scroll 24 is located, so that the lspring 3 will operate to absorb shocks and vibrations between the scroll and the spring a's will be readily understood.

The upward movement of the head 13 is limited by the bends 4 in 'the links 1, as the lugs 15 will strike these bends upon an eX- treme movementl of the head.

l 1, may have their hooked ends 2 positioned under "the coiled spring, and the parts may be connected to the scroll 24 and the spring 12 respectively. Nut 27 is thenv unscrewed to permit the coiled spring 3 to move downwardly into the hooked ends 2, and then the sol . rod 25 is removed and the device is ready for use.

To vary the tension of the spring in accordance with the vehicle on which theshoek absorber is used, I provide links 1 of various' lengths andby the use of the proper length of link in accordance with the load to be sustained, the proper distance between the hanger and the head is also maintained, so that the vehicle will be carried at the proper height. l

Various slight 'changes might be made in the general form and arrangement of parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to `make such changes and lalterations as fairly fall within the spirit and scope of the appended claims.

IIaving thus described my invention, what I claim as new and desire to secure by Letters Patent is:

-1. A shock absorber comprising parallel links adapted to be connectedto a support, inwardly projecting devices at the lower ends of the links, a coiled spring located between the links and supported by said devices, and a head supported on the upper end of said spring, substantially as described.

2. A shock absorber' comprisingV parallel links adapted at their upper ends to be connected to a support, and having inwardly projecting hook shaped lower ends, a coiled spring1 located between the links and supported on the hook shaped lower ends thereof, and a head supported on the upper end or said coiled spring, 'substantially as described.

3. A shock absorber comprising parallel linksadapted at their upper ends to be connected to a support, and having inwardly projecting hook shaped lower ends, a coiled spring located between the links and supported on the hook shaped lower ends thereof, said hook shaped ends projecting up inside of the lower convolution of the coiled spring, a head supported on the upper end of said coiled spring and having guides at opposite sides thereof in which the links are located, substantially asl described. y

4. A shock absorber comprising parallel links adapted at theirA upper ends to be connected to a support, and having inwardly projecting hook shaped lower ends, a coiled spring located between the links and supported on the hook shaped lower ends there of, a head supported on the upper end ol' said coiled spring, upwardly projecting lugs on said head having iianges projecting outwardly against the edges oit' the links, and a platesecured'to said lugs and bearing against the opposite edges `of said links, substantially as described.

5. A shock absorber comprising parallel links adapted at their upper ends to be connected to a support, and havinfr inwardly projecting hook shaped lower enc s, a coiled spring located between the links and supported on the hook shaped lower ends there of, a head supported on the upper end of said coiled spring, upwardly projecting lugs on the head having laterally projecting flanges at one edge, a plate secured to the edges of said lugs and cooperating with the flanges to form guides for the links, and

bolts securing th plate to the lugs and having a plurality o' shives thereon between the plate and the lugs, substantially as described.

6. A shock absorber comprising a pair of independent parallel links adapted tov be connected toa support, a coiled spring located between and supported at its lower 'end by inwardly bentv ends on said-links'ha head supported 'on said spring, and: said links having inwardly bent portions constituting stops limiting the upward movement of the head, substantially as describledy 7. A shock absorber comprising parallel links adapted at their' upper ends to be connected to a support, and havin inwardly projecting hook shaped lower en s, a coiled spring located between the links and supported on the hook shaped lower ends thereof, said hook shaped ends projecting up inside of the lower convolution of the-coiled spring, a head supported on the upper end of said coiled spring, and said links' having inwardly bent portions constituting' stops limiting the upward movement of the head,

substantially as described.

moines )orted on the hook sha ed lower ends therel P of, said hook shaped ends projecting up inside of the lower convolution of the coiled spring, head supported on the upper end or' said coiled spring and having guides at opposite si des thereof 1n which the links are located,l and. said links having inwardly bent portions constituting stops limiting Athe upward movement of the head, substantially as described.

9. A shock absorber comprising parallel links adapted at their upper ends to be connected to a support, and having inwardly projecting hook shaped lower ends, a coiled spring located between 'the links and supported on the hook shaped lower ends thereof, a head supported onthe upper end of said coiled spring, upwardly projecting lugs on said head having anges projecting outwardly against the edges of the links, a plate secured to said lugs and bearing against the opposite edges of said links, and said links having inwardly bent portions constituting stops limiting the upward movement of the head, substantially as described.

l0. A shock absorber comprising parallel links adapted at their upper ends to be connected to a support, and having inwardly projecting hook shaped lower ends, a coiled spring located between the links and supported on the hook shaped lower ends thereof, a head supported on the upper end of said coiled spring, upwardly kprojecting lugs on the head having laterally projecting flanges at one edge, a plate secured to the edges of said lugs and copcrating with the flanges to form guides for the links, bolts securing the plate to the lugs and having a plurality ot shives thereon between the plate and the lugs, and said links having inwardly bent portions constituting stops limiting the upward movement ol the head, substantially as described.

ll.. A shock absorber comprising parallel links adapted at their upper ends to be connected to a support, and having inwardly projecting hook shaped lower ends, a coiled spring located between the links and sup` ported on the hook shaped lower ends thereof, said hook shaped ends j n'ojecting up inside oitl the lower convolution of the coiled spring, ahead supported on the upper end of said coiled spring and having guides at opposite sides thereof in which the links are located, said lugs having alined openings rein, and a pin positioned in said open` ings, said links located at opposite ends of the pin and limiting longitudinal movement thereof, substantially fas described.

A. shock absorber comprising parallel links adapted at their upper ends to be connected to a support, and having inwardly projecting hook shaped lower ends, a coiled spring located ,between the links and supported on the hook shaped lower ends thereol', a head supported on the upper end of said coiled spring, lupwardly projecting lugs on said head having anges projecting outwardly against the edges of the links, a plate secured to said lugs and bearing against the opposite edges of said links, said lugs having alined openingsV therein, and a pin positioned in said openings, said links located at opposite ends of the pin and limiting longitudinal movement thereof, substantially as described.

13. A shock absorber comprising parallel links adapted at their upper ends to be connected to a support, and having inwardly projcctinghook shaped lower ends, a coiled spring located between the links and supported on the hook shaped lower ends thereof, a head supported on the upper end of said coiled spring, upwardly projecting lugs on the head having laterally projecting flanges at one edge, a plate secured to the edges of said lugs and cooperating with the flanges to form guides for the links, bolts securing the plate to the lugs and having a plurality of shives thereon between the plate and the lugs, said lugs havingalined openings therein, and a pin positioned in said openings, said links located at opposite ends of the pin andv llimiting the longitudinal movement thereof, substantially as described. i

lll. A. shock absorber comprising parallel links having hook shaped lower ends, a bolt projected through the upper end of one of said links and having screw-threaded engagement with the other of said links, a coiled spring supported on the hook shaped lower ends oit the links, said hook shaped ends projecting upwardly within the lowest convolution of the coiled spring, a head mounted on the upper end of the spring and having guides at opposite sides thereof in which the links are movable, and a pin supportedby said head and prevented from longitudinal movement by the engagement with the links, substantially as described.

l5. A shock absorber comprising parallel links having hook shaped lower ends, a coiled spring located between the links and supported on the hook shaped lower ends thereof, a head on the upper end of said spring, said head having a threaded openingl for the reception of a rod, and the latter havingl means thereon for compressing the spring, substantially as described.

16. A shock absorber comprising parallel links having hook shaped lower ends, a coiled spring supported on the hook shaped lower ends of said links, a head supported on the upper end of said coiled spring and having laterally projecting flanges,"ar plate In testimony vvhcreof. I have signed my secured lto the head and coperating with name to this specification in the presence` of lthe anges to formguides for the links, said two subscribing Witnesses.

4hinges having sockets 'in their inner faces, AALLEN EVERT HALL.

-and Wearing plates located between the links Witnesses:

' f and the flanges and havin studs positioned M. E. DITTS,

in saidjsockets, 'substantial y as described. CEAS. E. lPo'mns. 

